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The increasing wage inequality in many countries is usually seen as brought about by economic forces that drive for economic efficiency within a changing technological and social environment. Ethical evaluations of these developments diverge, yet the view that free labor markets drive to efficiency remains undisputed. This note sets out to criticize, in a non-technical manner, this efficiency presumption which is based on Adam Smith’s theory of wage setting. It is urged that a Smithian wage structure would indeed be both efficient and fair. Yet modern labor markets work in ways that are fundamentally different to what was envisaged by Adam Smith. That makes the outcomes observed in modern labor markets, according to Smithian standards, both inefficient and unfair. As a consequence, the pursuit of the Smithian ideal requires organizational remedies, intervention and regulation in labor markets.

Applicants for any given job are more or less suited to fill it, and the firm will select the best among them. Increasing the wage offer attracts more applicants and makes it possible to raise the hiring standard and improve the productivity of the staff. Wages that optimize on the trade-off between the wage level and the productivity of the workforce are known as selection wages. As men react more strongly to wage differ¬entials than females, the trade-off is more pronounced for men and a profitmaximizing firm will offer a higher wage for men than for women in equilibrium.

The expansion of higher education in the Western countries has been accompanied by a marked widening of wage differentials and increasing overqualification. While the increase in wage differentials has been attributed to skill-biased technological change that made advanced skills scarce, this explanation does not fit well with the observed increase in overqualification which suggests that advanced skills are in excess supply. By "Reder-competition" I refer to the simultaneous adjustment of wage offers and hiring standards in response to changing labor market condition. I present a simple model of Reder competition that reproduces the simultaneous increase in wage differentials and overqualification in response to an increase in education.

The expansion of higher education in the Western countries has been accompanied by a marked widening of wage differentials and increasing overqualification. While the increase in wage differentials has been attributed to skill-biased technological change that made advanced skills scarce, this explanation does not fit well with the observed increase in overqualification which suggests that advanced skills are in excess supply. By "Reder-competition" I refer to the simultaneous adjustment of wage offers and hiring standards in response to changing labor market condition. I present a simple model of Reder competition that reproduces the simultaneous increase in wage differentials and overqualification in response to an increase in education.

The expansion of higher education in the Western countries has been accompanied by a marked widening of wage differentials and increasing over-qualification. While the increase in wage differentials has been attributed to skill-biased technological change that made advanced skills scarce, this explanation does not fit well with the observed increase in over-qualification which suggests that advanced skills are in excess supply. By “Reder-competition” I refer to the simultaneous adjustment of wage offers and hiring standards in response to changing labor market conditions. I present a simple model of Reder competition that depicts wages as driven by labor heterogeneity, rather than scarcity. The mechanism may give rise to a simultaneous increase in wage differentials and over-qualification.